Review on ⚡ Heunwa Power Save Box, 90V-250V 30KW Energy Saving Device, Electricity Saver for Household, Office, Market, Factory (US Plug) by Bill Garczynski

Electricity bill reduced by $28 for the first month. It cannot be proven that this was due to the device, but it is a positive sign. I believe that this device smoothes the power consumption of the line on which it is installed. Look in your fuse box and you'll see many different fuses, each connected to different lights and plugs around the house. If the unit is installed on a line that has nothing plugged into it I suspect there will be little or no results, but when it is plugged into a line that has multiple active electrical devices plugged into its outlets I can see where the results are going to be. positive. The more draws there are on the line with this set, the more likely the savings are. So if you check which lines have the most active devices connected to them and install one on each line, you should see savings on your energy bill.